85 lines
2.7 KiB
Python
85 lines
2.7 KiB
Python
# pylint: disable=C0111,R0903
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"""
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Displays the message that's received via unix socket.
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Parameteres:
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* messagereceiver : Unix socket address (e.g: /tmp/bumblebee_messagereceiver.sock)
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Example:
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The following examples assume that /tmp/bumblebee_messagereceiver.sock is used as unix socket address.
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In order to send the string "I bumblebee-status" to your status bar, use the following command:
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echo -e '{"message":"I bumblebee-status", "state": ""}' | socat unix-connect:/tmp/bumblebee_messagereceiver.sock STDIO
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In order to highlight the text, the state variable can be used:
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echo -e '{"message":"I bumblebee-status", "state": "warning"}' | socat unix-connect:/tmp/bumblebee_messagereceiver.sock STDIO
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contributed by `bbernhard <https://github.com/bbernhard>`_ - many thanks!
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"""
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import socket
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import logging
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import os
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import json
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import core.module
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import core.widget
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import core.input
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class Module(core.module.Module):
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@core.decorators.never
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def __init__(self, config, theme):
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super().__init__(config, theme, core.widget.Widget(self.message))
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self.background = True
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self.__unix_socket_address = self.parameter("address", "")
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self.__message = ""
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self.__state = []
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def message(self, widget):
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return self.__message
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def __read_data_from_socket(self):
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while True:
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try:
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os.unlink(self.__unix_socket_address)
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except OSError:
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if os.path.exists(self.__unix_socket_address):
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logging.exception(
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"Couldn't bind to unix socket %s", self.__unix_socket_address
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)
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raise
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with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as s:
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s.bind(self.__unix_socket_address)
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s.listen()
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conn, _ = s.accept()
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with conn:
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while True:
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data = conn.recv(1024)
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if not data:
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break
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yield data.decode("utf-8")
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def update(self):
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try:
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for received_data in self.__read_data_from_socket():
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parsed_data = json.loads(received_data)
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self.__message = parsed_data["message"]
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self.__state = parsed_data["state"]
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core.event.trigger("update", [self.id], redraw_only=True)
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except json.JSONDecodeError:
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logging.exception("Couldn't parse message")
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except Exception:
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logging.exception("Unexpected exception while reading from socket")
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def state(self, widget):
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return self.__state
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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